IT1066564B - CHECK VALVE - Google Patents
CHECK VALVEInfo
- Publication number
- IT1066564B IT1066564B IT5019076A IT5019076A IT1066564B IT 1066564 B IT1066564 B IT 1066564B IT 5019076 A IT5019076 A IT 5019076A IT 5019076 A IT5019076 A IT 5019076A IT 1066564 B IT1066564 B IT 1066564B
- Authority
- IT
- Italy
- Prior art keywords
- check valve
- check
- valve
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
- F16K15/036—Dual valve members with hinges crossing the flow line substantially diametrical
- F16K15/038—Dual valve members with hinges crossing the flow line substantially diametrical having a common hinge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/033—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member spring-loaded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
- F16K15/035—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member with a plurality of valve members
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7838—Plural
- Y10T137/7839—Dividing and recombining in a single flow path
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/607,339 US4005732A (en) | 1975-08-25 | 1975-08-25 | Flapper valve with independent spring action |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1066564B true IT1066564B (en) | 1985-03-12 |
Family
ID=24431861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT5019076A IT1066564B (en) | 1975-08-25 | 1976-06-28 | CHECK VALVE |
Country Status (20)
Country | Link |
---|---|
US (1) | US4005732A (en) |
JP (1) | JPS5226629A (en) |
BE (1) | BE843479A (en) |
BR (1) | BR7604221A (en) |
CA (1) | CA1031234A (en) |
CH (1) | CH608285A5 (en) |
DE (2) | DE2629514A1 (en) |
DK (1) | DK289576A (en) |
ES (1) | ES449336A1 (en) |
FR (1) | FR2322317A1 (en) |
GB (1) | GB1499295A (en) |
IE (1) | IE42869B1 (en) |
IL (1) | IL49892A (en) |
IT (1) | IT1066564B (en) |
LU (1) | LU75262A1 (en) |
MX (1) | MX143113A (en) |
NL (1) | NL158903B (en) |
PT (1) | PT65284B (en) |
SE (1) | SE422984B (en) |
ZA (1) | ZA763733B (en) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU530038B2 (en) * | 1978-08-18 | 1983-06-30 | Pegler Hattersley Aust. Pty. Ltd. | Valve |
US4385552A (en) * | 1981-04-16 | 1983-05-31 | Marvin Nabben | Exhaust fan and anti-backdraft shutter assembly |
US4507061A (en) * | 1982-09-14 | 1985-03-26 | Henry Filters, Inc. | Check valve and pump receptor assembly |
JPS61135070U (en) * | 1985-02-12 | 1986-08-22 | ||
US4602654A (en) * | 1985-09-04 | 1986-07-29 | Hydra-Shield Manufacturing Co. | Coupling for fire hydrant-fire hose connection |
US4658857A (en) * | 1985-09-20 | 1987-04-21 | Surgeaco, Incorporated | Control valve with split disc |
DE3533905A1 (en) * | 1985-09-23 | 1987-04-02 | Subrat Chatterjee | Intermediate-flange non-return valve |
NZ230553A (en) * | 1988-09-21 | 1993-04-28 | Stockham Valve Au Pty Ltd | Check valve with pivoting plates made from sheet material and pivot pin retained in body with spring clips |
GB9324697D0 (en) * | 1993-12-01 | 1994-01-19 | Goodwin R Int Ltd | Plates for wafer check valves |
US6810920B1 (en) | 2003-09-08 | 2004-11-02 | James A. Rolling | Fuel drip prevention method |
US20050171495A1 (en) * | 2004-01-29 | 2005-08-04 | Austin Timothy W. | Waste collection unit with manifold interface assembly |
US7311740B2 (en) * | 2005-02-14 | 2007-12-25 | Honeywell International, Inc. | Snap acting split flapper valve |
US7779859B2 (en) * | 2006-08-30 | 2010-08-24 | Honeywell International Inc. | Flapper with insert stops for check valve |
CN200975524Y (en) * | 2006-11-16 | 2007-11-14 | 苏州纽威阀门有限公司 | Double piece opposite clamping back valve |
US8439088B2 (en) * | 2010-05-19 | 2013-05-14 | Ford Global Technologies, Llc | One-way valve for a fuel-tank filling conduit |
US8844563B2 (en) * | 2011-07-20 | 2014-09-30 | Hawa Valves (India) Private Limited | Dual plate check valve |
US9651160B2 (en) * | 2014-09-24 | 2017-05-16 | Hamilton Sundstrand Corporation | Anti-flutter check valve |
TWI607145B (en) * | 2015-01-09 | 2017-12-01 | 陳文泉 | Gas flow adjusting device |
KR101685487B1 (en) * | 2015-05-06 | 2016-12-13 | 현대자동차주식회사 | Variable valve |
AU2017330468B2 (en) * | 2016-09-26 | 2021-09-30 | Fluid Handling Llc | Contoured check valve disc for low cracking pressure |
EP3633111A1 (en) * | 2018-10-02 | 2020-04-08 | Vonroll Infratec (Investment) AG | Back flow preventer, hose coupling for a hydrant and hydrant |
US11156303B2 (en) | 2019-05-31 | 2021-10-26 | Mueller International, Llc | Break check valve for hydrant |
US11204102B2 (en) * | 2020-03-19 | 2021-12-21 | Mueller International, Llc | Watertight check valve |
JP7311542B2 (en) * | 2021-01-27 | 2023-07-19 | フタバ産業株式会社 | exhaust parts |
US11725746B2 (en) | 2021-06-07 | 2023-08-15 | Mueller International, Llc | Low water hammer break check valve |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US303702A (en) * | 1884-08-19 | oaeeicabuetj | ||
US3127148A (en) * | 1964-03-31 | Valved coupling | ||
US3718156A (en) * | 1971-01-27 | 1973-02-27 | A Fujii | Automatic air flow smoothing apparatus |
US3910114A (en) * | 1974-08-12 | 1975-10-07 | Rosean Nancy Helen | Dual vane flow meter |
-
1975
- 1975-08-25 US US05/607,339 patent/US4005732A/en not_active Expired - Lifetime
-
1976
- 1976-06-22 GB GB2594776A patent/GB1499295A/en not_active Expired
- 1976-06-22 IE IE1347/76A patent/IE42869B1/en unknown
- 1976-06-23 ZA ZA763733A patent/ZA763733B/en unknown
- 1976-06-23 IL IL4989276A patent/IL49892A/en unknown
- 1976-06-25 NL NL7607032A patent/NL158903B/en not_active IP Right Cessation
- 1976-06-25 DK DK289576A patent/DK289576A/en not_active Application Discontinuation
- 1976-06-28 PT PT6528476A patent/PT65284B/en unknown
- 1976-06-28 CH CH825476A patent/CH608285A5/xx not_active IP Right Cessation
- 1976-06-28 BR BR7604221A patent/BR7604221A/en unknown
- 1976-06-28 SE SE7607342A patent/SE422984B/en not_active IP Right Cessation
- 1976-06-28 DE DE19762629514 patent/DE2629514A1/en active Pending
- 1976-06-28 DE DE19767620774U patent/DE7620774U1/en not_active Expired
- 1976-06-28 CA CA255,834A patent/CA1031234A/en not_active Expired
- 1976-06-28 FR FR7619576A patent/FR2322317A1/en active Granted
- 1976-06-28 IT IT5019076A patent/IT1066564B/en active
- 1976-06-28 LU LU75262A patent/LU75262A1/xx unknown
- 1976-06-28 ES ES449336A patent/ES449336A1/en not_active Expired
- 1976-06-28 MX MX165288A patent/MX143113A/en unknown
- 1976-06-28 BE BE1007476A patent/BE843479A/en not_active IP Right Cessation
- 1976-06-29 JP JP7697876A patent/JPS5226629A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
ZA763733B (en) | 1977-05-25 |
BE843479A (en) | 1976-12-28 |
DK289576A (en) | 1977-02-26 |
ES449336A1 (en) | 1977-12-01 |
DE2629514A1 (en) | 1977-03-03 |
SE7607342L (en) | 1977-02-26 |
IE42869B1 (en) | 1980-11-05 |
PT65284B (en) | 1977-12-13 |
FR2322317A1 (en) | 1977-03-25 |
JPS5412648B2 (en) | 1979-05-24 |
BR7604221A (en) | 1977-04-05 |
IL49892A0 (en) | 1976-08-31 |
CA1031234A (en) | 1978-05-16 |
DE7620774U1 (en) | 1980-03-20 |
IE42869L (en) | 1977-02-25 |
JPS5226629A (en) | 1977-02-28 |
GB1499295A (en) | 1978-01-25 |
SE422984B (en) | 1982-04-05 |
FR2322317B1 (en) | 1982-11-26 |
NL7607032A (en) | 1977-03-01 |
NL158903B (en) | 1978-12-15 |
CH608285A5 (en) | 1978-12-29 |
MX143113A (en) | 1981-03-18 |
US4005732A (en) | 1977-02-01 |
IL49892A (en) | 1979-03-12 |
PT65284A (en) | 1976-07-01 |
LU75262A1 (en) | 1977-03-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19950630 |